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دوره 7، شماره 14 - ( پاییز و زمستان 1390 1390 )                   جلد 7 شماره 14 صفحات 104-89 | برگشت به فهرست نسخه ها

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Karami Khaniki A, Ziaeyan F. Effects of Geometric Parameters on Tidal Behaviour of Long Estuaries. Marine Engineering 2012; 7 (14) :89-104
URL: http://marine-eng.ir/article-1-192-fa.html
کرمی خانیکی علی، ضیائیان فاطمه. تاثیر عوامل هندسی بر جزر و مد در خورهای طویل. مهندسی دریا. 1390; 7 (14) :89-104

URL: http://marine-eng.ir/article-1-192-fa.html


1- مرکز تحقیقات حفاظت خاک و آبخیزداری
2- دانشگاه آزاد اسلامی، واحد علوم و تحقیقات
چکیده:   (8481 مشاهده)
Tidal behavior of esturies is more complicated than open seas. It arises from the effects of geometrical parameters. Also other parameter such as wave reflection from the end of estuaries, sieche, bed friction and coriolis forces cause the water level changes in the esturies to be several times as in the open sea. This paper evalutes the effects of gemetric parameters (such as length, wide and depth), on the tidal behaviour of macro-tidal estuaris. It was done specifically for Mahshahr estuary, located in north west of Persian Golf. This research was done by using numerical simulation and field measuements. As a result, it can be said that: wide of estuary has no effect on phase and high tide elevation in the estuary. Also reduction of water depth causes the phase increament and reduction of tide amplitude, while it has no effect on high tide elevation in the estuary. It also shows that, flood wave transformation from sea into the estuary is associated with phase lag. The amount of this lag is about 10 and 20 minutes per kilometer of the channel length in the deep part and shallow part of the estury, respectively. The results also show that Mahshar estuary to behave as a rectangular–shallow-long estuary.
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نوع مطالعه: مقاله پژوهشي | موضوع مقاله: شرايط محيطي و زيست محيطي
دریافت: 1391/3/22 | پذیرش: 1392/7/27

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